Cuyahoga River
The Cuyahoga River was once one of the most polluted rivers in the United States. It has caught fire a total of 13 times dating back to 1868, including this blaze in 1952 which caused over $1.3 million in damages. Photo: Cleveland State University Library

2015 Earth Day Special

Think Earth Day was started by a group of tree-hugging hippies? That’s just part of the story. In this hour-long special, we explore the past and present of Earth Day—from the man who gave Earth Day its name, to how businesses today are using Earth Day as a clever marketing ploy.

Listen to this episode (54:00)